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20130201
20130228
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KCSM (PBS) 1
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'll tell you why one presidential monument includes a statue of his dog. >> so join us now for this week's "teen kids news." >> welcome to "teen kids ns." i'm mwanzaa. >> and i'm siena. we'll start with our top story. >> whether you've already got your driver's license, a learner's permit, or are still just a passenger, you're probably quite aware that the cost of gasoline has gone up a lot in recent years, and that's causing many people to rethink the cars they drive. carina reports on one answer to the high cost of gas -- electricity. >> the first cars appeared in the late 1700s. they were powered by steam, like locomotives. but soon, these horseless carriages moved to using what's called an internal combustion engine. basically, that means they ran by burning fossil fuel. and ever since, internal combustion engines have run on... >> gas. >> gas? >> gasoline? >> yes, gasoline. or its cousin, diesel fuel. but gas and diesel pollute. so carmakers tried electricity. that didn't work so well. one of the problems was the battery. they just couldn't make a battery powerful enough to make an
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